Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.

Windows 7: Broken Windows mirror. How do I restore disk mirror?

Started with Windows and apps successfully running on Disk 0 (1TB Seagate). Bought an exact duplicate HDD, recognized as Disk 1. Followed instructions and used Windows Disk Manager to convert Disk 0 to Dynamic, and configured as a mirror with Disk 1. Everything still worked perfectly. Physically disconnected Disk 0 to test booting from the Disk 1 mirror. Boot failed, and upon reconnecting Disk 0, the PC rebooted (from Disk 0), but mirror was broken.

THEN, my error, instead of properly re-establishing the mirror, I "imported" Disk 1. PC still boots (from Disk 0), but now Disk 1 appears with a drive letter, and Disk Manager does not offer the option to break nor re-establish the mirror. What steps must I take to re-establish the mirror?

Neither Seagate DiscWizard nor the Dell Backup utility seem to work with the dynamic disks. The running application is mission critical, so I hesitate to use "unbranded" utilities.

I solved my predicament via the following steps.
***WARNING: The following actions can be dangerous because they erase files (which were not needed in my case). Please do not follow these instructions if you do not understand the purpose of each step.***

1. Remove the Drive: letters assigned to volumes in the broken half disk of the mirrored set. In my case, Disk 0 was fully operational, active and contained the "good" volumes with assigned drive letters C: and E:, and Disk 1 was an old, broken, mirrored copy with now useless volumes assigned drive letters F: and G:.
I removed the drive letter assignments for volumes F: and G:, by invoking the Diskpart utility at the command prompt:

4. Verify that the mirror is operational. Go to Windows Disk Management to confirm that the volumes in Disk 0 are now mirrored in Disk 1. Test that during boot, you can now boot from the mirror ("PLEX").

Broken Windows mirror. How do I restore disk mirror?

Broken Mirror HelpI have a Dell Studio 9000 I ordered with two 600GB drives in a Raid 1 configuration. The other day I got a BSOD and the system wouldn't boot. I ended up taking it to a local Geek shop and they gave it back booting up. They said the boot sector was corrupted and they fixed it. That was probably a...

Cannot mirror 3rd partition of Disk 0I have two 1TB hard drives in my system, and I'm trying to get the second one to mirror the first. The first disk has three partitions - System Reserved, Windows 7, and Data. I was able to successfully mirror the first two partitions through Disk Management, but I do not have the option to "Add...

Hardware & Devices

Boot from Mirror (Dynamic Disk)Okay I converted my boot disk to dynamic, and a secondary drive to dynamic.
I added a mirror, it synched up and now I have a mirror set... lol
How do I add a boot option to boot from the mirror if needed?
I knew how to do this in XP/2003 with the boot.ini
I've tried system properties and...

Installation & Setup

Mirror HD in Disk ManagementI was resizing some partitions in windows seven when I discovered the mirroring feature. So have two exact same size drives I added a mirror to the c drive. Once completed it mentioned something about manually making changes to the boot loader using bcdedit. I just glanced at it because at the same...

Hardware & Devices

Does Win7 support SOFTWARE RAID-1 (dynamic disk mirror)Hi
Does the final RTM Windows 7 support SOFTWARE RAID-1 (dynamic disk mirroring)? I know it supports fake-raid and hardware raid but I want to use software raid because my disks are of different size. I don't want to try it myself since I would have to convert my disks to dynamic.
Windows Vista...